function FixPng() {
    $(document).pngFix();
}

function IsInteger(s) {
    var i;
    for (i = 0; i < s.length; i++) {
        // Check that current character is number.
        var c = s.charAt(i);
        if (((c < "0") || (c > "9"))) return false;
    }
 
    // All characters are numbers.
    return true;
}